Design of a Low-Voltage Electromagnetic Riveting Equipments

In this paper, a new type of low-voltage electromagnetic riveting device used in aeronautical manufacturing field is developed. The electromagnetic riveting device is designed with the principle of reluctance. The electromagnetic riveting device comprises two helical coils, which respectively is the main coil and the reset coil. When the main coil is working, the iron material armature is driven to move forward to impact the rivet, with the impact pressure of 80 kN. In the working voltage of 400 V and energy storage of 1600 J state, it can easily complete the riveting process of the diameter of 5mm aluminum rivet. The resetting coil can pull the iron armature back to the initial position and hold on. The new type electromagnetic riveting device can be automatically controlled. The riveting, returning and holding function can be finished in the sequence, with the frequency 15 times a minute.